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Optical fiber outer layer coating with interpenetrating network polymer structure and preparation method thereof

A technology of interpenetrating network and polymer, which is applied in the field of optical fiber outer layer coating and its preparation of interpenetrating network polymer structure, can solve the problems of toxic small molecule photolysis products, affecting material performance, not environmental protection, etc., and achieve solidification volume The effect of small shrinkage, high modulus, and high Tg

Active Publication Date: 2020-10-16
武汉长盈鑫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although ordinary optical fiber outer coatings do not contain solvents, they all use small-molecule photoinitiators. During the production process, unpleasant or even toxic small-molecule photolysis products will be produced, and some of them will be volatilized immediately under high-temperature conditions during production. , and some remain on the surface of the finished optical fiber and it takes a long time to volatilize and dissipate, and the general-purpose additives are also small molecules. After curing and forming a film, these residual products and additives will gradually migrate out, which not only affects Material performance, but also extremely environmentally friendly

Method used

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  • Optical fiber outer layer coating with interpenetrating network polymer structure and preparation method thereof
  • Optical fiber outer layer coating with interpenetrating network polymer structure and preparation method thereof
  • Optical fiber outer layer coating with interpenetrating network polymer structure and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0057] An interpenetrating network polymer (IPN) structure of the outer coating for optical fiber. In terms of weight percentage, the content of each component is:

[0058] Silicone modified alicyclic epoxy acrylate (SIEA1) 11%, hyperbranched prepolymer CN2304 9%, acrylate active diluent 14%, alicyclic epoxy active diluent 58%, free radical photoinitiator 1.7%, macromolecular sulfonium salt cationic photoinitiator Esacure 1187 2.32%, light curing leveling agent 0.4%, light curing defoaming agent 0.02%, polymerization inhibitor Omnistab IC 0.07%, macromolecular active antioxidant Chinox GM 3.49 %, the sum of each component meets 100%.

[0059] Wherein, the acrylate reactive diluent is calculated by weight percentage, and its component content is: 33% tricyclodecane dimethanol diacrylate (DCPDA), 67% tris(2-hydroxyethyl) isocyanurate Acid triacrylate (THEICTA); the alicyclic epoxy reactive diluent is calculated by weight percentage, and its component content is: 72% TTA21P, 28% ERL4...

Embodiment 2

[0067] An interpenetrating network polymer (IPN) structure of the outer coating for optical fiber. In terms of weight percentage, the content of each component is:

[0068] Silicone modified alicyclic epoxy acrylate (SIEA4) 10%, hyperbranched prepolymer 15%, acrylate active diluent 17%, alicyclic epoxy active diluent 51%, free radical photoinitiator 1.2 %, macromolecular sulfonium salt cationic photoinitiator Esacure 1187 2.75%, light curing leveling agent 0.3%, light curing defoaming agent 0.02%, polymerization inhibitor OmnistabIC 0.05%, macromolecular active antioxidant Chinox GM 2.68%, The sum of the components meets 100%.

[0069] Among them, the hyperbranched prepolymer is calculated by weight percentage, its component content is: 62% CN2302, 38% BDE1029; the acrylate reactive diluent is calculated by weight percentage, its component content is: 44% Tricyclodecane dimethanol dimethacrylate (TCDMA), 56% tris (2-hydroxyethyl) isocyanuric acid triacrylate (THEICTA); the alicycl...

Embodiment 3

[0076] An interpenetrating network polymer (IPN) structure of the outer coating for optical fiber. In terms of weight percentage, the content of each component is:

[0077] Silicone modified alicyclic epoxy acrylate (SIEA2) 11%, hyperbranched prepolymer 8%, acrylate active diluent 18%, alicyclic epoxy active diluent 55%, free radical photoinitiator 1.3 %, macromolecular sulfonium salt cationic photoinitiator Esacure 1187 2.75%, light curing leveling agent 0.45%, light curing defoaming agent 0.04%, polymerization inhibitor Omnistab IC 0.05%, macromolecular active antioxidant Chinox GM 3.41% , The sum of each component meets 100%.

[0078] Wherein, the hyperbranched prepolymer is calculated by weight percentage, and its component content is: 57% BDE1029 and 43% DR-E522; the acrylate reactive diluent is calculated by weight percentage, and its component content is: 27% tricyclodecane dimethanol dimethacrylate (TCDMA), 73% tricyclodecane dimethanol diacrylate (DCPDA); the alicyclic ep...

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Abstract

The invention discloses an optical fiber outer layer coating having an interpenetrating polymer network structure and a preparation method thereof. The optical fiber outer layer coating comprises thefollowing components in percentage by weight: 8-25% of organosilicone modified alicyclic epoxy acrylate, 4-30% of hyperbranched prepolymer, 4-20% of an acrylate active diluent, 50-80% of HCEP active diluent, 0.5-8% of free radical photoinitiator, 1-8% of macromolecular sulfur-containing onium salt positive ion photoinitiator Esacure1187, 0.3-3% of a photocuring flatting agent, 0.01-1% of a photocuring defoaming agent, 0.05-1% of polymerization inhibitor OmnistabIC, 0.5-5% of macromolecular active antioxygen ChinoxGM, total content of various components being 100%. The optical fiber outer layercoating is prepared by mixing the above components and then preserving heat. The coating has the characteristics of high Tg, high modulus, high strength, low solidification shrinkage, no yellowing, heat temperature resistance, aging resistance, stable stability, environmental protection and no toxicity and the like, not only can perform UV curing but also can UV-LED curing.

Description

Technical field [0001] The invention relates to the field of new materials, in particular to an optical fiber outer layer coating with an interpenetrating network polymer structure and a preparation method thereof. Background technique [0002] At present, the more mature commercially available is the silica glass optical fiber, which is made by melting and drawing a silica glass preform. Pure silica glass fiber will inevitably be affected by various mechanical damages and environmental factors during use, and cannot meet the actual application requirements at all. Therefore, the glass optical fiber should be coated with a protective resin-optical fiber coating in the shortest possible time when it is drawn and formed in the holding furnace. Due to the large additional loss during single-layer coating, the double-layer coating process is currently mainly used. The first layer directly in contact with the optical fiber is usually a soft, low modulus, low glass transition tempera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D187/00C09D201/00C08G81/00C08G59/17C08G18/67C08G18/61
CPCC08G18/61C08G18/672C08G59/1466C08G81/00C08L2203/202C09D5/18C09D187/005C09D201/005C08L101/005C08L87/00
Inventor 万欢余晓梦皮亚斌黄星崔丽云
Owner 武汉长盈鑫科技有限公司